OK, let's crack this. We're given 85 and our task is to multiply it by 7. Essentially, we'll be adding 85 to itself 7 times.
Step 1: 0 + 85 = 85
Step 2: 85 + 85 = 170
Step 3: 170 + 85 = 255
Step 4: 255 + 85 = 340
Step 5: 340 + 85 = 425
Step 6: 425 + 85 = 510
Step 7: 510 + 85 = 595

So, 85*7 = 595